diff --git a/bitvector/py.typed b/bitvector/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/pyproject.toml b/pyproject.toml
index dfb95d2..4fc2ae6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,8 @@ authors = ["JnyJny <erik.oshaughnessy@gmail.com>"]
 license = "Apache-2.0"
 readme = "README.md"
 repository = "https://github.com/JnyJny/bitvector.git"
-packages = [ {include = "bitvector" } ]
+packages = [{include = "bitvector" }]
+include = ["bitvector/py.typed"]
 
 [tool.poetry.dependencies]
 python = "^3.7"